# include <stdio.h>
int main()
{
	int t=0,a=0,b=0,c=0,d=0;
	printf("enter\n");
	scanf("%d,%d,%d,%d",&a,&b,&c,&d);
	if (a>b)
	{t=a;a=b;b=t;}
	if (a>c)
	{t=a;a=c;c=t;}
	if (a>d)
	{t=a;a=d;d=t;}
	if (b>c)
	{t=b;b=c;c=t;}
	if (b>d)
	{t=b;b=d;d=t;}
	if (c>d)
	{t=c;c=d;d=t;}
	printf("%d,%d,%d,%d\n",a,b,c,d);
	return 0;
}

